Safety goggles that will protect against splashes,or a face shieldA chemical cartridge respirator for protectionagainst small amounts of organic vapors or forprotection for a short duration; or an air-linerespirator (or some other type of supplied-airrespirator) if use is extensive or in a confinedspaceCoverallsMake sure work areas in which you use chlorinatedcleaning solvents have proper ventilation. For enclosedspaces, an air change every 3 minutes is recommended.Consult the gas free engineer to determine if theventilation is adequate.Organic Cleaning SolventsOrganic cleaning solvents include the following:TolueneXyleneSome alcoholsAcetoneMethyl ethyl ketoneEthyl acetateDry-cleaning solventKerosenePetroleumEtherTurpentineMorpholine and other related compoundsThese compounds are highly flammable and highly tomoderately toxic. Some are also corrosive. Inhalation ofconcentrated vapors may cause dizziness, nausea, orvomiting.Organic cleaning solvents should be stowed asfollows:Stow organic cleaning solvents in a flammableliquid storeroom, ready service storeroom, or aflammable locker.Keep them away heat, open flames, orspark-producing devices.Stow them away from oxidizers, such as calciumhypochlorite, sodium nitrate, and hydrogenperoxide.When handling organic cleaning solvents, wear thefollowing PPE:Neoprene glovesSafety splash gogglesProtective coveralls (recommended)In addition, if vapors accumulate over 100 parts permillion (ppm), wear an OBA and notify the gas freeengineer.Fluorocarbon Refrigerants and SolventsFluorocarbon refrigerants and fluorocarbonsolvents, such as trichlorotrifluoroethane (Freon 113,Freon TF, Genetron 113, R-113), are commonly foundaboard ship. They are used in food storage compart-ments and air-conditioned spaces and as solvents inengineering spaces.Fluorocarbon vapors have the followingcharacteristics:They are colorless and almost odorless.They cannot be detected without specialinstruments.They are nonflammable and nonexplosive;however, exposure to flames or hot surfaces willcause these compounds to generate hydrogenchloride, hydrogen fluoride, and otherpoisonous gases.They arent irritating, but contact may causefrostbite.Operations involving trichlorotrifluoroethane (Freon113) are considered hazardous. An industrial hygienistor a gas free engineer must evaluate and approve theseoperations to ensure the work process meets safetyrequirements.18-9Student Notes: